Joanna Jedrzejczyk and Claudia Gadelha brawled on TUF 23 set

To date, Claudia Gadelha is the only woman to nearly defeat Joanna Jedrzejczyk inside the Octagon.

Jedrzejczyk won the fight via split decision and then went on to defeat Carla Esparza to claim the UFC women’s bantamweight championship.

The pair recently filmed TUF 23, where they coached opposite each other. According to UFC President Dana White, things got extremely heated on the final day, which resulted in a brawl breaking out.

He spoke at the EA Sports UFC 2 party, which MMAFighting has transcribed:

“Joanna Jedrzejczyk and Claudia Gadelha, on the last day of filming when everything shut down, got into a full-blown fist fight. Head kicks. Nasty fight in The Ultimate Fighter gym.”

“The show is over, the cameras were put away. The sad and scary part was very few people were left in the gym. The last day of The Ultimate Fighter is almost like the last day of school. Everybody is signing each other’s stuff and all this other stuff.”

“[She said,] ‘I’m so fucking sick of listening to your mouth,’ and they started going at it and I pulled them apart.”

“You noticed when they were showing each other the water bottles [during the press conference]? Joanna Jedrzejczyk hit her with a water bottle and that’s how the fight started. Wait until you see this season of The Ultimate Fighter with these two. They hate each other and the staredown in the gym was even crazy before the fight happened.”